Spindle and bearing



PATENT OFFICE.

GEORGE O. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPER COMPANY, OF SAME PLACE AND PORTLAND, MAIN-E.

SPINDL AND BEARING.

SPECIFICATION forming part of Letters Patent No. 609,757, dated .August 23, 1898.

.'Appllcatlon filed November 26, 1897. Serial No. 659,814. (No model.)

goa/ZZ whom t may con/cern.-

Be it knownthat I, GEORGE O. DRAPER, of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Spindles and Bearings, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a novel bearing for spinning-spindles detail of yet another form to be described.

The spindle S, having a tapering pintle to fit a correspondingly-tapered bore in the bolster, and the bolstercase A, having its lower end threaded to receive the usual nut B to retain it on the rail C, and the sleeve-whirl W, attached to the spindle, may be and are of usual construction. 4

ln my present invention the bolster is supported directly by and is vertically adjustable in the bolster-case and is also held thereby from rotation. Y

Referring to Fig. l, the lower end of th bolster BX is counterbored at b and longituf dinally slotted at Zi and fits tightly into the bolster-case, the expansibility of the slotted end of the bolster maintaining it in frictional engagement With the case, by which it is supported and maintained from rotation.

By moving the bolster up or down in the case the proper lit of the pintle of the spindle is effected, and the bolster is held by friction in such vertioally'adj usted position.

The slotted end is counterbored at h to prea vent any compression upon the adjacent pora tion `of the pintle.

In Fig. 2 the bolster is practically turned end for end, the counterbored expansible portion then engaging the bolster-case at or near its upper end.

The spindle step or end bearing D in both instances rests on the bottom of the bolstercase and is entirely independent of the bolster.

A reversal of the construction described is shown in Fig. 3, wherein the upper end of the bolster-case B8 is longitudinally slotted at bs to provide expansibility, and the upper enlarged end b5 of the bolster B5 is frictionally held thereby in vertical adj usted position and is held from rotation.

Except at the portion in frictional engagement with the casethe bolster is loosely fitted to permit some slight freedom of movement, although both ends of the bolster could be frictionally held, if desired.

Having described my invention, what I claim, and desire to secure by Letters Patent,

l. The combination with a bolster-case, of

a bolster having an integral expansible portion arranged to frictionally engage the case and be supported thereby. 2. The combination with a bolstercase, of a bolster having an integral annularly-enlarged expansible portion adapted to telescopically enter and be frictionally held in vertically-adjusted position in the case.

3. A bolster-case having a closed lower end, a removable spindle-step held sustained by the lower end of the case, and a bolster having an integral expansible supporting portion arranged to frictionally engage and be sustained by the case in vertical adj usted posie tion.

4. A bolster-case, and a bolster having an annularly-enlarged, expansible portion, arranged to t into and be frictionally held in position by the case.

5. A bolstercase, and a bolster having an annularly-enlarged, counterbored end longitudinally slotted, said endvbeing adapted to enter and be frictionally held in position in the case.

(l. The combination with a bolster-case, of a bolster havinga tapered bore to fit the pintle of the spindle, and having a spring-acting portion, arranged to frictionally engage and sible portion of one being arranged to engage .frictionally a laterally-unyielding portion of the other, to retain the two members in ver- I5 tically-adjusted relative position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

' GEORGE o. DRAPER.

Witnesses:

E. D. BANCROFT, E. E. HOWARD. 

